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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Positive In Hair Follicle Test In A Kid?

my fifteen month old grandson came up positive with a hair folicle test, we were told coiuld only go back maybe 60 days. what kind of exposure would have to happen for this to happen. It was apparently high amount. parents claim they never smoked in same room as him.
Fri, 15 May 2015
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Pediatrician,  's  Response
Hi,
Welcome to HCM

In hair follicle test,Cocaine, Marijuana, Opiates (Codeine, Morphine & 6-Monacteyl Morphine), Methamphetamine (Methamphetamine/Amphetamine & Ecstasy), and Phencyclidine (PCP). These five drug classes are mandated for testing by the Federal Government.

Environmental contaminants are the big problem for hair testing. Microscopic amounts of smoke and powders cling to the hair shaft and wind up as a trace amount on a false-positive hair test. To make matters worse, contaminants cling to dark, coarse hair much more readily-making African-Americans, Latinos and Asians significantly more susceptible to a false-positive result. According to one report, people with dark hair are 10 to 50 times more likely to test positive for drug use from a hair-follicle drug test.

So in my opinion, if your grandson is not exposed to any of the drugs, then it might be just a false positive report due to contamination.
For further questions, do contact us.
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What Causes Positive In Hair Follicle Test In A Kid?

Hi, Welcome to HCM In hair follicle test,Cocaine, Marijuana, Opiates (Codeine, Morphine & 6-Monacteyl Morphine), Methamphetamine (Methamphetamine/Amphetamine & Ecstasy), and Phencyclidine (PCP). These five drug classes are mandated for testing by the Federal Government. Environmental contaminants are the big problem for hair testing. Microscopic amounts of smoke and powders cling to the hair shaft and wind up as a trace amount on a false-positive hair test. To make matters worse, contaminants cling to dark, coarse hair much more readily-making African-Americans, Latinos and Asians significantly more susceptible to a false-positive result. According to one report, people with dark hair are 10 to 50 times more likely to test positive for drug use from a hair-follicle drug test. So in my opinion, if your grandson is not exposed to any of the drugs, then it might be just a false positive report due to contamination. For further questions, do contact us.